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Presentations from the popular Linux on Power for ISVs Technical Symposium that was held at IBM Hursley, UK last week are now available in the Folders section of the PowerLinux community (click on the Folders tab in the Files view or just use this short link http://ibm.biz/BdRrdm ). The event was hugely successful with the theatre jam-packed with over 60 attendees including 47 ISVs and technical specialists from IBM and IBM's distributors, Avnet, Arrow and Azlan ISI. Key note was from Jeff Scheel , who was excellent as always, and... [More]

By: Steve Dobbelstein. On February 22, 2013, IBM® published a new SPECjEnterprise®2010 result on a two socket system. The result was achieved on the new IBM PowerLinux™ 7R2 system using IBM WebSphere® Application Server v8.5 and IBM DB2® 10.1 running on Red Hat® Enterprise Linux® release 6.4. The Linux Technology Center (LTC) team, the WebSphere team, the Java team, and the DB2 team all worked together to analyze and tune the performance of the hardware and... [More]

By Mauricio Oliveira. Remarkable Java performance improvements are being seen on the latest IBM Power Systems featuring POWER7+ processors which have significantly bigger, 10MB L3 caches associated with each core. A Java workload call ed SPE Cjbb 200 5 ha s run-time characteristics which benefit greatly from that larger L3 cache. Comparisons of recent external publishes with the workload compared to earlier POWER7 based publishes show how well Java workloads like this can run on the newer POWER7+ systems. A new... [More]

By: Wainer dos Santos Moschetta. As of Version 1.2, the IBM SDK for PowerLinux comes with IBM Java 6 SDK required to run the Eclipse instance. Users sometimes ask me how they can change JVM (Java Virtual Machine) parameters according to their specific needs (e.g. increase jvm heap size due to big projects being imported into the SDK). Here is an answer: The JVM parameters are defined in the following file where any options under -vmargs will be passed to the JVM. /opt/ibm/ibm-sdk-lop/sdk_launcher.ini Here is an example of... [More]

Need Java 7? We got Java 7. By: Bill Buros. Last year we posted that the IBM Java 7 was in open beta mode, but along the way we neglected to post the news that the IBM Java 7 kits are now fully available across a number of platforms and operating systems. By now, this is relatively older news, IBM Java 7 was announced back in September 2011, but it's always good to remind people and teams that it's available. This latest IBM Java is available on Power systems and across the RHEL and SLES distros available for Power. We use the latest... [More]

Java Java Java! By: Bill Buros. If you're interested in the latest Java technology, IBM is running an open beta program for IBM SDK for Java™ 7 . In the Beta, there are a number of new technologies, new approaches, improvements, and updates. In the Linux Technology Center, we're busy updating the Java Performance on POWER7 article with new recommended tunings and optimizations, getting experience with the Beta release and the Java 7 update, and of course providing feedback to the development teams. In the coming days, we'll be updating... [More]

By: Bill Buros. Java based applications and workloads are pervasive in the server space. Nicely, IBM provides Power-tuned Java engines for the operating systems which run on Power servers. Easy to download . Easy to install. Easy to leverage. This allows product teams around the world to leverage the best of Java with the best of Power7 servers to deliver applications optimized for Power. IBM teams regularly provide the latest Java updates, with... [More]